By Roshni Patel, BSc (Hons), MCOptom

The cornea, as we know it, is a complex and fast-healing tissue that provides protection from infectious and non-infectious defects. However, it can still be injured through environmental impacts or surgical procedures, such as cataract operations or laser-assisted in situ keratomileusis (LASIK), as well as traumatic injuries. Although most corneal wounds repair themselves without further drawbacks, possible complications may occur and delay the healing process. This blog outlines the natural healing process of corneal wounds and post-surgical wound healing, as well as the obstacles to healing that may occur in diabetic patients.

Patients who develop stage 3 and 4 pressure injuries with prolonged wound chronicity and complexity may require surgical intervention. One surgical method used to encourage healing in pressure injuries is flap surgery, which involves taking a section of skin with an intact blood supply and placing it over the injured area. Flaps play a major role in the healing of wounds with exposed structure. Flap surgery can help prevent hospitalization and decrease morbidity. Flap surgery is used to prevent and resolve complications, including surgical site infections and other infections, dehiscence, recurrence, flap necrosis, nutrient deficiencies, and prevention of future malignancy (Marjolin ulcer) and seroma or hematoma.

Pressure injuries are among the most significant health and patient safety issues that health care facilities face daily. Aside from the strong impact on patients’ quality of life, they also have high costs of treatment, not just to the patient, but also to the health care industry. The Agency for Healthcare Research and Quality reported $20,900 to $151,700 per individual patient and pressure injury in health care costs. The prevalence of present-on-admission (POA) pressure injuries is 26.2% among those admitted to the hospital from a nursing home and 4.8% among those admitted from another living setting. Hospital-acquired pressure injuries (HAPIs) cost the US health care system $9.1 to $11.6 billion a year.

Adherence: Adherence is a term used to replace "compliance" in reference to a patient following clinician orders for wound care. Compliance implies that the patient should passively comply with the health care provider’s instructions, whereas adherence allows for patients to have the freedom to follow the provider’s recommendation without blame being focused on them if they do not or are not able to follow these recommendations.

Medical device–related pressure injury (MDRPI): MDPRIs are localized injuries to the skin or underlying tissue resulting from sustained pressure caused by a medical device, such as a brace, splint, cast, respiratory mask or tubing, or feeding tube.

Offloading: Offloading refers to minimizing or removing weight placed on the foot to help prevent and heal ulcers, particularly those caused by poor circulation to the feet due to diabetes.